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Table 3 Patients’ characteristics and clinical outcomes when CE was defined as ≥ 3 PCs in 10 HPFs

From: Histological diagnostic criterion for chronic endometritis based on the clinical outcome

  Non-CE CE P value
N = 39 N = 14
Age (y), Median, IQR 36 (33–37) 38 (37–39) 0.0051
Gravidity, Median, IQR 0 (0–0) 0.5 (0–2) 0.04
Parity, Median, IQR 0 (0–0) 0.5 (0–1) 0.0006
BMI (kg/m2), Median, IQR 21.9 (19.6–24.5) 20.9 (19.9–24.1) 0.54
Smoking habit (%) 0 0 1
FSH (mIU/mL), Median, IQR 8.6 (6.7–9.7) 9.05 (7.83–10.4) 0.18
Previous OPU cycles, Median IQR 1 (1–4) 1.5 (1–3.3) 0.93
EM thickness (mm), Mean ± SD 10.5 ± 2.0 10.0 ± 2.0 0.39
Rate of good blastocysts (%) 64.1 (25/39) 57.1 (8/14) 0.75
Infertility cause
 Tubal factor 10 5 0.50
 Ovarian factor 6 2 1
 Endometriosis 9 4 0.73
 ASA 0 0 1
 Fertilization failure 1 1 0.4
 Male factor 11 2 0.47
 Unexplained fertility 11 3 0.74
Pregnancy rate (%) 53.9 (21/39) 28.6 (4/14) 0.13
Live birth rate (%) 38.5 (15/39) 7.1 (1/14) 0.041
Miscarriage rate (%) 28.6 (6/21) 75 (3/4) 0.12
  1. CE chronic endometritis, PCs plasma cells, non-CE non chronic endometritis, HPF high-power field, SD standard deviation, IQR interquartile range, BMI body mass index, FSH follicle stimulate hormone, OPU ova pick up, EM endometrial, ASA anti-sperm antibody positive